﻿using System;
using Callisto.Controls;
using Callisto.Controls.Common;
using GalaSoft.MvvmLight.Ioc;
using Mutzl.Samples.MapApp.Flyouts;
using Mutzl.Samples.MapApp.View;
using Win8nl.Services;
using Windows.ApplicationModel;
using Windows.ApplicationModel.Activation;
using Windows.UI.ApplicationSettings;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Media;

// Todo 01. den Namen der App als Resource "AppName" in der App.xaml festlegen
// Todo 02. eigenen Bing Maps Key in App.xaml eintragen -> https://www.bingmapsportal.com/


namespace Mutzl.Samples.MapApp
{
    /// <summary>
    /// Provides application-specific behavior to supplement the default Application class.
    /// </summary>
    sealed partial class App : Application
    {
        /// <summary>
        /// Initializes the singleton application object.  This is the first line of authored code
        /// executed, and as such is the logical equivalent of main() or WinMain().
        /// </summary>
        public App()
        {
            this.InitializeComponent();
            this.Suspending += OnSuspending;
        }

        /// <summary>
        /// Invoked when the application is launched normally by the end user.  Other entry points
        /// will be used when the application is launched to open a specific file, to display
        /// search results, and so forth.
        /// </summary>
        /// <param name="args">Details about the launch request and process.</param>
        protected override async void OnLaunched(LaunchActivatedEventArgs args)
        {
            var visualElements = await AppManifestHelper.GetManifestVisualElementsAsync();
            backgroundBrush = new SolidColorBrush(visualElements.BackgroundColor);

            SettingsPane.GetForCurrentView().CommandsRequested += OnCommandsRequested;



            Frame rootFrame = Window.Current.Content as Frame;

            // Do not repeat app initialization when the Window already has content,
            // just ensure that the window is active
            if (rootFrame == null)
            {
                // Create a Frame to act as the navigation context and navigate to the first page
                rootFrame = new Frame();

                SimpleIoc.Default.Register<INavigationService>(() => new NavigationService(rootFrame));

                if (args.PreviousExecutionState == ApplicationExecutionState.Terminated)
                {
                    //TODO: Load state from previously suspended application
                }

                // Place the frame in the current Window
                Window.Current.Content = rootFrame;
            }

            if (rootFrame.Content == null)
            {
                // When the navigation stack isn't restored navigate to the first page,
                // configuring the new page by passing required information as a navigation
                // parameter
                if (!rootFrame.Navigate(typeof(MapView), args.Arguments))
                {
                    throw new Exception("Failed to create initial page");
                }
            }
            // Ensure the current window is active
            Window.Current.Activate();
        }

        /// <summary>
        /// Invoked when application execution is being suspended.  Application state is saved
        /// without knowing whether the application will be terminated or resumed with the contents
        /// of memory still intact.
        /// </summary>
        /// <param name="sender">The source of the suspend request.</param>
        /// <param name="e">Details about the suspend request.</param>
        private void OnSuspending(object sender, SuspendingEventArgs e)
        {
            var deferral = e.SuspendingOperation.GetDeferral();
            //TODO: Save application state and stop any background activity
            deferral.Complete();
        }

        public static string MapsKey { get { return Current.Resources["MapsKey"] as string; } }

        public static INavigationService NavigationService
        {
            get
            {
                return SimpleIoc.Default.GetInstance<INavigationService>();
            }
        }


        private SolidColorBrush backgroundBrush;
        private void OnCommandsRequested(SettingsPane sender, SettingsPaneCommandsRequestedEventArgs args)
        {
            // Todo 13. ... oder Settings-Flyout überhaupt entfernen
            CreateFlyout(args, "Einstellungen", new SettingsControl());
            CreateFlyout(args, "Über...", new AboutControl());
            CreateFlyout(args, "Datenschutz", new PrivacyControl());

        }

        private void CreateFlyout(SettingsPaneCommandsRequestedEventArgs args, string headerText, UserControl control)
        {

            var cmd = new SettingsCommand(headerText, headerText, command =>
            {
                new SettingsFlyout
                {
                    HeaderBrush = backgroundBrush,
                    ContentBackgroundBrush = backgroundBrush,
                    HeaderText = headerText,
                    Content = control,
                    IsOpen = true
                };
            });
            args.Request.ApplicationCommands.Add(cmd);

        }


    }
}
